CN203911838U

CN203911838U - Intelligent solar photovoltaic assembly

Info

Publication number: CN203911838U
Application number: CN201420298470.6U
Authority: CN
Inventors: 林期远; 周鑫发; 江海燕
Original assignee: Zhejiang Zhong Gui Electronic Science And Technology Co Ltd
Current assignee: Zhejiang Zhong Gui Electronic Science And Technology Co Ltd
Priority date: 2014-05-24
Filing date: 2014-05-24
Publication date: 2014-10-29
Anticipated expiration: 2024-05-24

Abstract

An intelligent solar photovoltaic assembly is disclosed, and multiple intelligent solar photovoltaic assemblies can be connected in parallel and accompanied by remote control software for forming a complete solar power generation system. Each intelligent solar photovoltaic assembly comprises a traditional solar photovoltaic assembly and a circuit board with at least one of DC-DC conversion, inversion, maximum power point tracking, power supply management, communication functions, thereby forming a minimum-capacity independent power generating unit device of the solar power generation system. The DC power output terminal of each traditional solar photovoltaic assembly is connected with the input terminal of the corresponding electronic circuit board, and the circuit board is provided with two groups of DC output ports, two groups of AC output ports, and two communication interfaces. The beneficial effects are that the assembly is modularized, plug-and-play, and hot-pluggable; the system expansion is simple; each assembly can be ensured to operate at a maximum power point; the assembly has a very strong local shadow resisting capability; the assembly needs no large-scale inverter and the space can be fully utilized; the whole system can be unaffected even if one single assembly fails; the direct control of each assembly is realized through an assembly onboard communication interface; and the rapid fault diagnosis can be realized.

Description

Intelligent solar photovoltaic module

Technical field:

The invention belongs to solar-photovoltaic technology field, specifically, the present invention relates to a kind of intelligent solar photovoltaic module.

Background technology:

Solar energy power generating is to utilize semiconductor photoproduction volta effect luminous energy to be changed into a kind of technology of electric energy, and current solar photovoltaic generation system is mainly made up of photovoltaic array, inverter, control system and power distribution cabinet, energy storage device etc.Photovoltaic array is the core of solar power system, and its basic building block is solar photovoltaic assembly, is made up of through series and parallel connections multiple photovoltaic modulies; The electric energy of every photovoltaic module generation finally imports inverter by terminal box, and by inverter, high voltage direct current is converted to and can, for grid-connected or give user direct alternating current, needs the monitoring functions such as control system enforcement MPPT maximum power point tracking in power generation process.

Summary of the invention:

Technical problem to be solved by this invention: the MPPT maximum power point tracking of traditional solar power system is for whole photovoltaic array, and cannot take into account series-parallel each assembly, can not ensure that single component is operated in optimum state, affects the generating efficiency of whole system; In addition, because photovoltaic module quantity is more, in the time that a certain block assembly breaks down, a string assembly of series connection all cannot be worked with it, and definite faulty components position is more difficult, when maintenance, must carry out a large amount of investigations, and workload is huge; Also there is the defects such as the anti-local shade ability of system, poor expandability in traditional solar photovoltaic generation system.

In order to solve above technical problem, the technical solution used in the present invention is: the invention provides a kind of intelligent solar photovoltaic module, can need any polylith intelligent photovoltaic component in parallel according to capacity, be aided with remote control software, form a complete solar power system with this, every intelligent photovoltaic component comprises that a traditional solar photovoltaic assembly (1) and one have DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communication is the electronic circuit board (2) of function one of at least, form the independently solar power generation unit device of the minimum capacity of solar power system, it is characterized in that, the DC power output end of tradition solar photovoltaic assembly (1) is connected with the input of electronic circuit board (2), electronic circuit board (2) is provided with two groups of DC output end mouths (3), two groups of ac output end mouths (4) and two communication interfaces (5).

The utility model patent beneficial effect:

1, intelligent solar photovoltaic module is applied to solar photovoltaic generation system, can ensure that each assembly all operates in maximum power point, there is very strong anti-local shade ability, adapt to load and the weather condition of constantly variation, optimize efficiency and the reliability of solar energy system;

2, functions such as DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communications is integrated in photovoltaic module by this assembly, each assembly becomes an independent individual, no longer need single component connection in series-parallel composition photovoltaic array, can realize electricity generation system modularized design, realize plug and play and hot plug, system extension is simple and convenient;

3, this component application, in grid-connected system, no longer needs to take the large-scale inverter of independent installing space, can make full use of space and the application that adapts to different installation directions and angle;

4, this assembly improves electricity generation system redundancy, and single component lost efficacy and can not impact whole system, and component palette carrier communication interface can be realized the direct control of power-generating control system to every block assembly, realizes rapid failure diagnosis;

5, utilize this assembly can shorten design, the construction period of photovoltaic generating system, and can reduce operating human cost expenditure, reduce follow-up maintenance cost.

Brief description of the drawings:

Fig. 1. the inner theory diagram of one of the present invention;

Fig. 2. the rough schematic of structure of the present invention;

Fig. 3. the rough schematic that is applied to solar photovoltaic generation system of the present invention.

Embodiment:

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of intelligent solar photovoltaic module, comprise that a traditional solar photovoltaic assembly (1) and one have the electronic circuit board (2) of DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communication function, form the independently solar power generation unit device of the minimum capacity of solar power system

1, by several solar battery sheet connection in series-parallel and panel, backboard, the synthetic traditional solar photovoltaic assembly (1) of frame set;

2, for the ease of the parallel connection of polylith intelligent solar photovoltaic module, have DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communication one of at least the electronic circuit board (2) of function be arranged to two groups of DC output end mouths (3), two groups of ac output end mouths (4) and two communication interfaces (5);

3, the DC power output end of traditional solar photovoltaic assembly (1) is connected with the input of the electronic circuit board (2) in housing;

4, adopt and the method such as mount the electronic circuit board (2) with DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communication function is installed on the back side or frame of photovoltaic module, fixed with housing (6);

5, then need any polylith intelligent solar photovoltaic module in parallel according to capacity, be aided with remote control software, be combined into a complete solar power system.

Intelligent solar photovoltaic module output direct current or the selection of alternating current, the selection of magnitude of voltage are carried out long-range setting by the tele-control system of special electricity generation system by communication interface; The operating state of intelligent solar photovoltaic module is by inner power management function control, and keep real time information to link up by communication interface and tele-control system, uploading operation state information (output voltage stabilization degree, output current fluctuation situation, power output etc.), failure alarm signal etc., receiving remote control command etc.

Claims

1. an intelligent solar photovoltaic module, can need any polylith intelligent photovoltaic component in parallel according to capacity, be aided with remote control software, form a complete solar power system with this, every intelligent photovoltaic component comprises that a traditional solar photovoltaic assembly (1) and one have DC-DC conversion, inversion, MPPT maximum power point tracking, power management, communication is the electronic circuit board (2) of function one of at least, form the independently solar power generation unit device of the minimum capacity of solar power system, it is characterized in that, the DC power output end of tradition solar photovoltaic assembly (1) is connected with the input of electronic circuit board (2).

2. intelligent solar photovoltaic module according to claim 1, is characterized in that electronic circuit board (2) is provided with two groups of DC output end mouths (3), two groups of ac output end mouths (4) and two communication interfaces (5).